The cast aluminum denture base. Part I: Rationale

Effect of Aluminum Oxide Addition on the Flexural Strength and Thermal Diffusivity of Heat‐Polymerized Acrylic Resin

“…The acrylic polymer most commonly used for denture bases, polymethyl methacrylate (PMMA), has a thermal conductivity of approximately 0.2 W/min/°K, 3,11 which is approximately three orders of magnitude less than most metals. It is therefore not surprising that thermal conductivity has been one of the properties of acrylic resins most often associated with their replacement with metal as a denture base material (for example, gold and chromium cobalt alloys); 1,11–13 however, the use of metal as a denture base material has several disadvantages including increased weight of the denture, difficulty with tissue replacement in cases where substantial loss of bone has occurred, difficulty restoring denture borders within physiologic boundaries, difficulty with the relining process, esthetics, and high cost 1…”